Calling device.



y W. KAISLING.

GALLET@ @man APPLICATION FILED NOV.6,1911. 1,098,447, Patented June 2, 1914.

2 SHEETS-SHEET l.

NWN ulllllllililllllllllllllllllllllllll Il [Il lill W W. KAISLING.

CALLING DEVICE.

APPLICATION FILED Nov. o; 1911.

Patented June 2, 1914.

Aggfs-SHEET 2.

T Quemar U7 z'/vz'm Z'EZ'U .ii-LING, F CHICAG, ILLNDIS, ASSGNDR TG KELLOGG SWITCHBOARD ANB' SUPPLY GUMIPANY, G CHICAGO, ILLINOIS, A COR-PORATON UI? Ill'iLlNOF.

CALLING? DEVXCE.

Specilce'tion of 'Letters Eatent. .Faigmfgd fiumi@ 23? Lil/ll,

Application lef ,November 6, 1511. Serial No. 658,715.

To all whom it may @011.00m

ile il; known limi', il, llVILLIAjM lllnismno, residing in Chicago, county of Cook, and State of illinois, have invented new and useful lnugu'ovemeuiis in. Calling Devices, of which the following is :i specification.

My invenlion relates to calling devices, :ind more particularly to the type of cellingi device used in, connection. with soeulled metallic eircuil, :intonmcic fcelephone systems in which a metallic eireuil; interrupted :i predetermined number of times by the opernlion of the cellingdeviee, te control 'the operation oi? selector switches, in object he- 'infg to provide .such n device which is simple, positive in one iii-,ion end compactly :1rrunged. certain :lfeuii'ires and advantages ihereoi being;l more purliiculurly pointed out in the specilicnlion and appended elnilns. ln culling devices of the present type, when used in connection with soeculled u'iepnllic eli-cuil; automatic shvsienis in which quick und sloiv acting; relays are opel-:lied responsive lio interruptions of .the nietullic circuit by means ol ille culling device, it is :in ad* verdugo lo have u deviez so arranged that ils operulion Cun not he interfered with lo c-.iuse n, :iulse 'uil lo be l; 'nnsulitied To lhis end l lm wm'lred oula tiny invention in u ineifern )rin es illuslrnlied in the aecompunyiug oruwings in which- Figure l u fece view of e, culling device eiilliollving' my inienlien. llig. El is a rear View lhereoi. 2l is u view looking .25 downward nl; Fig: Q. Fig. l is u view lookirej upward uli Fig'. Q. Fig. 5 is a right end view oi? Fil-r. Q. 6 is :i rear vieur with lzhe bridge plaie l reinoveigl showing some of the interior mechanism in its normal posii'iou, `the niechunism in lig's. l to 5 being tuoi-uml. ll" Y is u 'view somewhut summilo lfie. {'lfhnt with some of the puns shown ull nornml. Fig'. S e detailed i? the se'liiug n'ieinber und starting et normali. 3""1. 9 shows the parte o in. an oil n orniul or operated pol0 illusrruies in perspective iuris whieh eonernl'e with the se@ sterling nien'lber. Fig. ll. shows 1min spring; barrel und spring; from "eh pov-:er derived for opernlingj the r df isin'ienlz. llig. l2- shoivs zi devil-e eine lnelrinfr und la, ion pswl which cooperates ,vilh lihe udjusling or setting men'iher und certain other parts of the mechanism. Fig. lll shows the rolinluble friction, members olf the governor. Fig. ld shows u, method of assembling the number dial andolE fastening the crystal lio the luce of' the device for proteeing the pointer and dial. Fig. l5 illustrates the spring barrel with :1 flut locking spring for holding; the barrel in place. Fig. 16 shows the settingn member moved to sin intermediate posi tion with the delenil (ne Fig. l2 resting on the periphery' of u geen toolh, causing` the detent to lock the slfniting plunger B :it normal. Fig. l? shows :i modified :rrr ngernent of lhe setting und sterling members. Figli is n well lzuoivn form of substation telephone diugrnmnmlically illus tinted sind showing the preferred method ol connecting the contact sliiings of rhe mill` ing,1 device therewith.

Generally speaking, my culling device is adapted lo transmit in'i'pulses according fothe udj slmeut of lhe setting member, this feature of course being common to u great many calling devices, as is vieil known. 'For instance, should il be desired "to rrunsmit nine impulses7 the setting member A. vlnioh is geared to the indi 'ating pointer 2, rotnl'ed until the poinler is opjms' the indicating numeral l), this operul'ion Causing :in adjustment of the impulse ineclmuism corresponding to 'lhe adjuslmenr or ille setting member A, Thereafter the seziriug plunger l is dern-esseci, releasing ille iun'iulsc, mechanism from ils udiustmmu, whereby the impulse springs flm nre i 'nj-rn'ed to Cause nine interruptions oi? ih @onlinr Likewise should it be desired ro ol'hernumher oil" iniprllses ironi "f eleven impulses lor the long; d pointer 2 :uljusred lo ihe .uuu spending; with the number el" Viuuj he transmitted und ille nieehnnisni i aller xelensed lo operaie.

referring new in delnil. to the consti-uw tion of the nieehnnisnn il: comprises. u :fr nl; plate G und e bridge-plaie l' confier--ed by 1'? through which extends four screws 18l threaded into plate 6.

A main shaft 19, has its bearing' at'one end in front plate 6, the other end extending into a bearing in spring barrel Q0, the said barrel being litted through a central open- `ingr in bridge plate 7, and having its shouldcr bearing a ainst )late 7 due to the ressure thereon ot the holding spring 21. Said.

by t e sing the projecting ends 21 free oi whereby it may be rotated and the dropped into another set or" open- .lr watch spring 23 is iiiclosed in Q9 having-one end secured to barrel Q9 and the other end secured to shalt 19.

A j ointer 2 is securely fastened in any suitab e manner to the front end of sli-att 19 so that it rotates with said shaft. The number plate 15 has an opening through its'ceir ter large enough to clear the end of pointer 2. Also rigidi.Y secured to shaft 19 is a pinion Q4 and a ratchet wheel 25, while loosely mounted upon said shaft 19 is a gear :2G carrying a pawl 27 which pressed against the teeth of ratchet wheel Q5 by a spring 28 which is securely fastened to the gear 26.

Governor mechanism is `irovided for rel tarding the operation ot the calling device so that it may run at a predetermined speed, preferably comprising a shaft 29 journaled at its end 29 in front plate 6, while its other end 292 is journaled in a cross bar 30 of friction ring 30, the said ring being rigidly secured against rotation in bridge plate 7, preferably. Governor shaft Q9 carries a pair ot friction blocks secured to thevfree endg ot spring member 313, which is rigidly supported between pinion 81 and collar 34 upon shaft The periphery orn friction blocks 32 is shaped to conform to the inner surface of friction ring 30 so that as shaft Q9 is rotated, blocks swing outward, as is well known, thus rubbin;r against the inner surface of ring 30 and rctarding the moven'ieiit ot the device.

I termediate gearing for connecting` the .shaft 19 with the governor mecha nisia is provided comprising a siiatt 95 hai/2 rigidly mounted thereon a pinion 53o and orar 37, the pinion being in meshA with QG carried by inainshaiit 19 and the ear 37 being in mesh with pinion 31 of the upon the governor mechanism Athrough the intermediate gearing 86, 37 and Si; Shaft 39 will` tend to' governor, so with this arrangement it lwilhbe y seen that when gear Q6 is carried around,y due to the rotation ot main shaft 19, itI-acts.y

negata? is journaled in the plates 6, 7', being shouldered against said plates in a well known manner to prevent longitudinal movement thereof.

l? or adjusting the mechanism of the calling device, setting means are provided preterably iii the form or setting member A comprising a knob 1 rigidly secured to a sleeve 38 which is rotatably supported in front plate G. For securing knob 1 to the sleeve 38 a pin 39 is provided which is driven through knob 1 and sleeve 38 thereby rigidly securing them. The lower end of sleeve 38 is flanged and fitted into a counterbore in front plate 9, and the portion 1 of knob 1 is 'adjusted close to the tace of plate 6, thereby preventing any longitudinal move` ment of sleeve 38 in its bearing in the plate 6. A Shaft 40 extends through sleeve 38 having a collar 41 normally resting against the llange end of sleeve 38, the said collar 41` having a cam surface 42 which is adapted to act upon other pai-ts of the mechanism as will be described. Farther down of shaft 40 a gear 4B is rigidly fastened, while the lower end 40 of shaft 40is journaled in plate Z eX- tending through the plate. Shaft 40 is slotted at 492` (as indicated by the dotted lines Fig. 8), pin 39 passing through said slot 402 in such a manner that shaft 40 may be moved longitudinally relative to knob 1, but has no relative rotary movement, that is shaft 4Q partakes of any rotary movement of knob l. To hold starting plunger B in its normal position, as indicated in Figs. 3, 4, 5 and 8, a spring member 44 is provided, being secured at one end by screw 18 and having its tree end esting under tension upon the end 40 of the plunger shaft, so that when it-is pressed inwardly it acts against the tension otspring 44 which serves to restore the plunger after operation.

An intermediate gear 45 is providedtor connecting the setting member A with the main or indicator shaft 19, this gear 45 also being preferably arranged to act directly upon the star wheel 53 which actii'ates impulse springs 4, 5. Said gear 45 is securely fastened to shaft 46, being preferably pinned to a collar 4G on said shaft, the shaft being journaled in plates 6, 7, and shoul! dered at each end in a well known manner to prevent longitudinal movement thereof.

lfrom the previous description it will lle seen how shaft 19 is connected with ilie ctting member A through the medium ot gears Q4, 45 and 43. A, shaft 48 extezds through a slot 45 in gear 45, the said shaftand slot being normal-'ly in engagement and thus acting as a stop for the gearing.

i A pair of impulse springs 4, 5 are insiilatingly mounted upon a bracket 7", preterably integral with plate 7, being bent at right angles thereto to carry said springs.

` 'The free end et has pairoears @neef-air 'spring' 5, the said Spring resting ander tension against the stud. 5l. t holding spring 5 2 is Securely clainpedhy means et screw lil, said spring having slottedv end resting on stud 50, thereby :lfrietionallfholding stud 'againet plate Stud ie slotted at one end for the insertion of a Screw driver whereby the stud may he rotated and diie to the eccentric movement imparted to its inv Snlatine stud. 5l., it will lie'seen that spring 5 inay he adjusted thereby;

For operating inipnlae springs a, 5, a. rotatable star wheel 53 ie provided, Securely fastened to a pinion 55, said Wheel and pinion being,` l'ree upon shaft 542, lhc shaft 54C is rigidlyI enppcnfted by arms 5G, 57 being ijiieierahly driven through the holes in the ende of said ai'nis and staked therein. With the pinion 55 and impulse Wheel 53 in their norinal position, that is, free from operative relation with the gearing, to prevent their lieing` readily rotated npon their shaft from any iai' ot the mechanism, a :friction spring 58 provided, `heilig'- adaptecl to against the side of pinion 55, thus frictionall)v holding it in place. is is indicated inore e early in Figs. il and (i ot' the drawings, inipnlae Wheel 53 and pinion 35 are held normallyY ont of operative relation with their respective .cooperating parte, roller lil and gearing reepectirely.

As previously referred to. the contact spring actnatint;` wheel 53 and its pinion are normallyv ont ol operative relation with lhei' actuating' `gear so that means are provided for throwing1 pinion into engagement with gear 45, prete 'ahly hy a piv otetl ineinher (5() coinjn'ieing a sleeve (il rigidljyT supporting' the arma 56, and the fiat tension spring 5h which clamped he tween its sleeve nl and arm 5G. A shaft 62 extends through sleeve 3l having ahonldered ende Supported in platee G, 7, the nielnl'iei"v 6G heine' tree to rotate on said shaft 6:2. A. linger (Sil, pret'erahl)I integral with arm 56, has; a liei'elcd eide G3' which adapted. to cooperate with the cani i2 of the Starting plnngijer B. EL locking ineniher (Sei is also pivolally supported hy Shaft said meinher 6i haring a slot 342 in which a coil spring; (35 ia diagnosed about shaft (32, one end of Said Spring extending; upward against the side of linger (3i-'5, the other end ot spring' 65 laterally pressing against a verti-l cal wall of slot G-l in auch manner that its tendency is to rotate ineinhers 60, Glin the direction oit the arrows indicated thereon in Fig. l0, lint diie lo snilahle slope 'they are hlornially normally held againat rotation.

linger resta in engagement with i;

as indicated in Fig. e, iinger 323 heli incross section, the eining ofi, pre. linger G3 against Said cani #l/.

lfhen the starting plunger ii if lepreeised cani acte upon linger n o i ing it ont- 'ard to the position iinlicaled if' i i' and 9, whereby ineinhei' (lo rotated on i pivot :ik i

inored into operative iel on with :roller lll and gral' l5 i'csiricctireiy lvl/'Vith thc and inipnlee .vheel l nil piiiiion on device in its nornnil position plunger free to be moved in and ont1 thereby act ng f upon the inenilier (il), lait this the ilnpnlse mechanism, the "lot canse any operation there in as;

tiret heen adjusted by the s ting incniher it.. as will he more tally dese l in order to prevent intr. device after setting` nicnilier fi has jnsted and the starting niei'nher .il to release the mechanism, the arin Gai oi locking' member Gl is arlnpted to he i'nored on its pivot to engage the shoulder all as indi :ated in Fig'. 9, thereby locking plunger ,B in its operated posilion nnlil the device reatores. ln litiga. and ii the nnrchanieni ia chown ell' normal with l'liif atzii.'tiin,i; pinngjer in.. ite` actuated position and a 'in (fi-l in loching' engagement with the liilar ll. lila inally, that ia `with the mechanism in an in operated position, locking ineinhizi Gel in held free oil collar -:l-1, (lne to pin on which ie .Se cnrely laatened to `near ,-li, engan'inr'the pin Si' in locking` nieinher (3l, win-rohr ini-ailier Gel is held as indicated in the lignrei showing' the ineclniniain at norinal. tao that it the setting nieniher ie rotan ingI gear l5, pin (lll nio\ anni; from pin ill", whereby spring' (S5 tende to rotate inciting; ineinher Gi on itsy iliirot. hat with the atari;- inp; plunge1 at norinal this ie ijirri'entcd as arni (i-i issimply pri i, periphery of collar il nnl'il the plunger is i'lcpi'esseed. ill @faire Wi th the hee n adopera teil Utili lS the etai-tina plunger is dein-e :=ed :i'ller the gear has heen inovcd oli normal. lo

directly hclow its .alot-led heartl eo that aha'lit may be lhrendcd into plate l e previously 'i in, elia il rrrtei'nls through slot .i n gear .l-i acting as a atop for the gearing. i Spring il is coiled tlnfreliy rotan i ice around the shaft 48, one end enpaging detent G9 and the other end resting in a ,slot l of stud 10 indicated in Fig. 5, its tendency being to press the beveled tooth 669 against gear e5. Ene to the beveled 'shape of tooth 69', setting member A may be rotated forward thereby moving` pointer 2 to any desired position, and the setting member A may be thereafter rotated haekward, detent 69 holding it in anyof its operative positions.

I have preferably proportioned the gears- 24 and l3,ivith -tWiee the number ot 'teeth in gear 43 as in gear 24, so that when setting member A. is rotated the angular advanee of gear' is twice the angular advance of gear 43, ln other words, rotatingl setting member A. one quarter ot a. revolution, causes a half revolution' et gear' 2e and pointer 2, which is thus moved to the indicating numeral 6. l have preferably proportioned the gears in die manner stated,

yso adjustment of. the pointer or indicator 2 may be seeured by comparatively small normal undeer influence of sprimH movement or rotation of setting member although it is to be understood that other proportions may be used as desired. lt is to bei'nrther observed that l have nprovided the same number of teeth in gear as there are divisions in the number dial, that is twelve teeth t0 twelve divisions of the dial, so that in order to move the pointer 2 to indicating numeral 23 for instance three teeth of gear 43 and oi Course it will loller,v also'three teeth of intermediate 45.

would be moved past a lgiven poin and would be held in this adjustment due to;V the frietional engagement between holding eletent (39 and gear l-. lt will be also olserved that impulse wheel and pinion 55 have the same number orn teeth, vand asive have assumed a condition where pointer was moved to numb-eer 3, whereby three l. v 1' te'eth of gear 4o were advanced, ny new actuating starting plunger l, it will be seen that inion and imoulse wheel are n l I first moved into engagement with their re-l gear fio and speetlive eoperating members roller 4f), and thereafter the n ing released due to the disei gears el?) and fl, gears l5 and Y '.haniffni beement of Loewe-7 anis-m in one of its operating positions, that tivo teeth ot guar illl as is elearlyshown in Fig. (S, the starting` ililunger may be freely lone' idinally reeiproeated. @luth/hen the setting -member is moved for instance the space or halt a tooth ot gear e3, the tooth 89 of holding detent G9 upon the periphery oe tooth ot gearel' and thereforetinger (392 in a nosition bene th collar 433, as indicated in i ig'. it, thereby preventing depres. on o the starting plonger while the mechanism i. in such an intermediate ating positie-i., Aind-as gear is advaneed one tooth to' each advaneement of pointer Q and gear lo from one operative position to the next, it will be seenv thatgthe plunger maybe reeiproeated only when the meehenism isadjueted to of its operating' positions.

t is also to be observed that should the operator depress the starting plunger part Way, the periphery of collar O3 will be adjacent eurfaee (3D3 and ther t cated in ig. tl, it will begimpossible to rotate rests lie setting member A.' due to the tooth 39 resting between tivo teeth of gear 3 preventing; any reeip'roaatm" or pivoting movement et member 59, vvhien or" course is neces sary in order to allow the free rotation ot setting member A.

When using a callin@u device in conne@ tion with a substation. telephone of an autoin'atie telephone system, and especially in eonmz-etion with systems of the metallic line type in which interruptions of the line eireuit are elleeted by the Cali' device to eentrol the central oliiee apparatus, it is desirtive (mer-ation oi? the central oiiiee apparatus :is is well lcnou'n. ln order to accomplish this l have arranged a shunt Contact springlr TSS which is adapted to be operated, and held operated, during the operation of the calling deviee in tranemittingr impulses. lt will :he 'devireeettng' member is first adiusted and thereafter the starting plunger is depressed and loeked in its depressed p tated by the action of starting plunger earn n ore is indi-A Therefore, l

uable to eut out. thesubstation apparatusl thereby reducing' the resistance of the' line rireuit and giving' a more efieient and posihe, remembered that in thex operation of 4:2, ceniaet springr T25 :herehy en .e'agfineT the enniael; Spring' 5 and heineI held .hns until lille ineelmnism in renlnred.

ln the mediliralion illuslraledin lfipj. li, he setting; knel) 13 is rigidly seenred i0 the plunger shaft Al so thai'. beth the shaft and kneh pari'alve nl? hoizh rel'ar;Y and lnne'ii'ndinal movement. ilhns in ihe operation nl: the device when rising' the setting and starting member as illustrated in Fig. 1G, the :nliuelzing lnieh is lirst rntalied le adjust'. JL'he peinier and impulse meehanism and there alier it depressed lin releane the mechaniem from its adjusted position.

llelierrinig non' te Fig. 1S. n n'ell known ferm elf substation. in diagn'anunatienll)7 illustrated, comprising; the usual swil'eh henk and reee'iver, eall hell, condenser. iinpedanee eeil and transmitter, and showing' one method of eenneelinfr the callin;r device. impulse Springs AIlm-5 are pri'rlierahly eonneeled in series with the l'alliinp; conductors S0, and shunt Spring' 723 is emmeeteilln conductor 51 no thai'. when Cnntaelis i-5 are. Closed the substation apparatus ehunied.'therehy reducing the line resisl'anee and alse preelndinej the poesihililjiY of' Jdie snhseriher in lge'ierinn' with the lzrannmisinien in the impulsief: hy" replarin;r his rei'eiver. .in during' ihe operal'ion 0ll the im palme sin'inirs ld?) eoniaet 5--7--753 ia elesed. an)v eperallien nl" the siviirh hook eonlarb` does noi alleel'- lhe preper operalien ol lhe inipulaey springs or lransniission ol impulses.

(iperaiinn: llavine' desi'rihed in Ageneral ihe ennslruei'inn nlE i'he device and eolipel'alion heln'een dill'erenl' (foiiperai'ingf elenienis. the narraiiw ol operalion olt the devire vvill non' he given. ssumingf lhalz lhe operator le ired lo el'eet six operations of lyhe inipnlse 'pliinjgri l Selling meinher is roH laleil in lhe rlil'erlion nll lihe arrow indieaied thereon in 'Fin'. l. lherehjf." 'olaling' .QOar -ll-v--li und '.llin the direei'ien eli ihe arrows` iniliealed lhereon in Fie'. 'i nnlil poiner '2 if; oppoflle lhe i'idiealor numeral (l. i'hin 0pernt'ion meaning ihal eaell nf lhe fears have. heen advanred .aix izeelh or lo lhe sixth operaiinn' poaiiion ol` lhe meehnninm. This epm-:nien olf eenre was anjaint l'he tension e'l spi-ing; and 'Furthermore due to Jehel rnlehel. arrangenienl eminectinn fears Q6 and lhia selling' operai-ion of the device ,don1 noli` Canne a roi-alien el' gear QG. as

rallehel, \\'heel Q5 SimpliY rides pant pawl QT, thus allowing vi'he forward Seil'ing moveineniV nl the derive n'ithoul` il'Y being' retarded le.' the ael'ion el the `governor. is ihe Sei-- ing ineinher is; heine' operated, dne li-0 the holding' delenii U9 frietinnzilly engaging' l'he inelh ni gear 13, 'the mechanism is of ennrse held in ils adjusted position.

lssiiiiiiiiig new that llhe Operator had merced the poirler i100 far, that is, te indi- :taining n neral 9 for instance, it may be riadil'vr moved l): el; in indieai'ine' l' hv simply relating Selling' ineinher in lhe revewe direriien as ioolh lill el' lhe holding deient Gil is se lmp-ed llnu" Selling niemher A may he rolal'ed in eilher direclinn a in'evinusly re'lierred in,

.in Helling' meniher il meren ell nrnmal 'i'. the lelling oljnralionas juni.- desorihed. pix lili enrried hy gear nieves away freni pl.L GT of lorliinn' lneinher lil. 'ivliereln" spring' fifi nel# upon Said niemher (5lpr ine: ilzf hiel;- inn' arm Gl against the periphe .r of collar -ll se ill ie free lo he moved .into locking engagenienl: when the starting plunger if# depressed as will he dimerihed.

',lfhe injwralor having' ndjueled lhe iininilne mechanism l'o ils sixlh operating peeilien, hereafl er lilepreses slarlii'ig member ll. fis the sl'ru'ling' plunger is moving' imri'in'arr, 'am #l2 ael's npon linger (Sil ninvinj l3 entward :ind lherelly roial'ing' ineinher ('30 nn ills pivot' and arising impulse Wheel and pinion to movl: iino epe alive relation with. lhe impnlse Spring rnller L'lll and geni' re- Speelively. mslarling men'iher rearhes im full)y depresaed posil'ion. which when wheel 53 and pinion fifi eikieralively engage lheir eec'lperal'inif elements aS Slal'eil. loe {inilg arm G-l" moved hiv Spring' G3 in'lo leaking' engagement willi l'he Sfnring' niemher, illnslraled in Fins. S". i". .LiinnltaneniLelyi er nihslanliallv fo. n'ilh they lneldnglj nn'n'enunl', el' :irm ll-l. gen1' -II' if# `reed l'rom `dear l5 an indiral'ed in hie'. Il whereby l'he impulsse n\e '-hanisin is; yeleased 'ler nperai'inn. 'rllhe `nn veinenl nl piveled meniher il() also (fanfares innnlalinr r .feve 'i'llo engage whnnl'v spring; 'i3 mnving il; inl@ enpja'geinent vvil'h ennl'aet- 5.'

liln'ill he olervwl ihnl While` i t.: nuinlnr .i is heine' i'nl:."ed and indiralnr fl. in an inii-rnieliale posilion. lha; .s in n penn iion l'iel'n'een :inv n'n nl (he iinliralinnF nninerals [he Starling plnnsfer ran nol' he deprenw'l. due io lhe roiiperniioi'i heiveen linfl'er (lli: n'l holding delenl 39 and enllar l0, this; heine' hrounhiL ahonl an 'follinvsr 4When l'he pninl'er Q in al. an;`- iniernnwlinie pi -i zien as stalerl, tenth Gil if: resting; upon l'lie peripheral enrlliaee el n lenih nl `gear ll 'nheri'i h v iingfer G92 iS in a pneiiion helen' eellar lll'l as indii'al'ed in llig'n. and lli 'llnlsi preventing lhe sl'nrlinfg' plunger l :nn heini; de pressed exeepr, when nnl'h 39 resling heween tiro ieelh ei Iear Alf-3. which means thai'y poini'er Q and the impnle merhanism mnstihe in an eperal'ing posiiinn.

Rernrning new l'o the pninl; where lli-e i ni, pnlne. mechnnisin was releaned 'lor in'ieraion. spring 23 nels upon Shall; 'lll and ihinfe'hy eileel's ille rel'ei'aliien o" rear i5, and lhe indiealier il. Due in ihe Gonne ion from shall, l() through gears QG, 3G, Si' andf-.ll lo l'he governor meehansm, this resl'nringf more ment is retarded .to e.. predetermined speen.

nume .'nl,

lBll

Gear 45 having been advanced sx teeth in 'the setting operation of the dev c as deout of locking engagement with the starting member E which is new restored by the action of spring da.

'As the starting plunger moves toward normal after being released, gear mpves into mesh with gear 45, and cani a2 also moving upward, linger 68 is mo'fed inward by the action of spring (i5 thereby rotating member 6l en its pivot and moving impulsel wheel 53 and pinion 55 out of opera tive relation with their coperating parts, the insulating bushing 74 being also carried by pivoted member 6l and moves outward allowing shunt spring1 73 to disengage itself from contact spring 5. The mechanism oit the calling device is now at normal and available to be operated again to cause another series ot operations of the impulse springs.

lVhile I have worked out my invention in a specific manner and embodied it in a commercial device, it is to be4 understood that many changes and modications thereof may be made and l do not desire to be limited to the exact structure as illustrated, but aim to cover all those changes and modifications as come within the spirit and scope or" the appended claims,

What l desire to secure as new by United States Letters Patent is:

i. A callingl device comprising a setting member, impulse mechanism adapted to be adjusted responsive to movement of said member, an indicating. dial, mechanism opveratiw-:ly connecting said dial with said setting member for indicating the adjustment ot' said mechanism, and a starting member adapted to be operated after adjustment for releasing said impulse mechanism for a transmitting operation thereof.

2. A calling device comprising impulse mechanism, a setting member for adjusting said mechanism, a dial responsive to said mechanism tor indicating the adjustment thereof, and a starting member for rthereafter releasing said aechanism from its adjustment for a transmitting operation thercor".

3. A calling device comprising impulse mechanism, a setting member tor adjusting` said mechanism, an indicator geared to said mechanism, and responsive thereto for indicating the adjustment of said mechanism,

and means -v mechanism :for operation.

calling device comprising impulse mechanism, a. setting member for adjusting said mechanism, an indicating dial operated responsive to an adjusting operation of said mechanism t'or indicating its adjustment, and means i'or releasing said impulse mechanism from its adjustment for operation.

i calling device comprising an indicating dial, impulse mechanism operatively con neet-ed with said dial, a rotatable setting member tor said impulse mechanism having a rotatable usting shaft positioned to one side et said dial whereby the operation of said dial may be clearly observed while said setting member is being operated, and a starting member axially `alined With said shaft.

6. A calling device comprising impulse mechanism, a setting member for adjusting said mechanism, an indicating dial responsive to said mechanism for indicating the adjustment thereof and a starting plunger independently movable of a setting movement of said setting member, for thereafter releasing said mechanism from its adjust-- ment tor a transmitting operation thereof.

7. i calling device comprising impulse .mechanismn setting means for adiustinsaid mechanism, an indicating dial responsive to said mechanism tor indicating the adjustment thereof, and means for operatively disconnecting said setting means from said mechanism after its adjustment whereby said mechanism is released for operation.

8. A calling de lvice4comprising impulse mechanism, a setting member for the adjustment thereof` and an indicating dial all operatively associated whereby-,said dial operates responsive to said mechanism when adjusted by said member, and means for operativel;T disassociating said setting member, and said mechanism and dial, whereby said dial and mechanism are restored for operation.

9. A calling device comprising impulse mechanism, a setting member for adjusting said mechanism, an indicating` dial operated responsive to said mechanism for indicating its adjustment, and means tor disconnecting` said setting member from said impulse mechanism and dial whereby they are restored for operation.VV

lO. A calling device comprising impulse mechanism having a plurality of operating positions, a setting member for adjusting said mechanism to its didi-rent positions, an indicating dial operated responsive to the adjusting movement ot said mechanism tor indicating the adjustment thereof, and a. starting member for thereafter releasing said mechanism whereby it operates according to its adjustment.

ll. A calling device .comprising impulse mechanism having a plurality of operating positions, a starting plunger for releasing said mechanism for operation when moved to any of its operating positions, and means to prevent operating said starting plunger when said mechanism is in an intermediate position.

13. A calling device comprising "impulse mechanism having a plurality ot operating positions, a setting member tor adjusting ysaid l,nfieclianism to its dill'crent positions,

an indicating dial operated responsive to a setting movement of said mechanism for indicating the adjustment thereof, means lor releasing said mechanism for operation when moved to any of, its operating positions, and means to prevent the relcaseof said mecha- Iiism when moved to an intermediate posi-A tion.

14. il. calling device comprising impulse mechanism having a plurality of operating positions, means i'or adjusting said mechanism to its diiierent positionsr an indicating dial operated responsive tb a setting movement of said mechanism for indicating the adjustment thereof, a starting plunger for releasing said' mechanism for operation when moved to any of its operating positions, and means -to prevent operating said starting plunger when said mechanism is in an intermediate position. y

l5. A calling device comprising impulse mechanism having ahplurality of operating positions, a setting member for. adjusting said'A mechanism to any of said positions, a

manually operated member for starting said mechanism when moved to any of its operating' positions and means for* rendering the device inert after adjustment untilsaid starting member is operated.

operating positions.

1G. A calling device comprising impulse mechanism, a spring motor for driving said mechanism, a spring barrel rotatably supported to inclose the motor spring, an elongated spring member suitably attached at one end and having its freeend engaging and holding said spring barrel against rotation, said spring member being adapted t0 he lifted free of said spring barrel to allow rotation oit' same for adjusting the tension of the motor spring.

17. A calling device comprising impulse mechanismra rotatable setting knob for adjusting said impulse mechanism, a trans-' vcrsely ope ated plunger member extending through thek center of said adjusting knob, and means responsive to a transverse operation ot' said plunger member for releasing said impulse mechanism from its adjustment ioroperation. Y

18. A calling device comprising a setting member, impulse mechanism adapted to be adjusted responsive to the movement of said member, a numbered dial'face, a dial indicator responsive to said setting member for indicating on the dial face the adjustment of said mechanism, and a starting member op- `erated after the adjustment is completed for releasing said impulse mechanism for a transmitting operation thereof.

19. A calling device comprising impulse mechanism having a plurality of operating positions, a manually operated setting member for adjusting said mechanism to any of ting member, and a manually operatedv start-I V ing'member adapted to.be operated for releasing said mechanism for a transmitting operation thereof-When moved to'any of its Signed by me at Chicago, countyof Cook, and State of Illinois, in the presence of two Witnesses.

vviLLiAM KAisLiNe.

Witnesses GEORGE E. MU'nLLniz, CARRIE E. ANDERSON. 

